Hiring blockchain developers usually means choosing between a marketplace of résumés and an agency that rents out seats. RedDuck is the third option: a Web3 engineering team, founded in 2020, that takes ownership of your protocol — architecture, code, testing, audit preparation, and mainnet deployment — on a dedicated-team or project basis. The numbers are company facts, not claims: 100+ deliveries shipped to mainnet, 150+ clients served, 20+ external audits passed with Hacken and Sherlock, and 0 post-release critical vulnerabilities. Pick the specialization below, or start from the engagement model.
A stable engineering team assembled from the bench — contract engineers, backend, QA, DevOps — that works as your protocol department over months, with composition flexing as the roadmap moves.
Best for: Products with a living roadmap: protocols, platforms, and token economies that keep generating engineering work.
A scoped engagement with a defined deliverable, taken from architecture review through development, testing, and external audit to a full-authority handover.
Best for: A defined build with a hard scope — and teams that want to evaluate the working relationship before committing.
Stack counts overlap — the same engineers ship on more than one stack. These are company-wide facts, not the size of a single project team: your team is assembled from this bench to match the scope.
The portfolio spans the specializations this cluster hires for: EVM contract systems with compliance enforced at the transfer level, original Anchor programs with the off-chain services that keep them alive, multi-chain wallet infrastructure, and a proposed Ethereum standard. Every entry is named on the cases pages — no logo walls, no anonymized “fintech client”.
Core contracts behind a live tokenized-treasury issuer — NAV-priced vaults with sanctions screening gating every transfer.
Solidity · Hardhat · OpenZeppelin upgradeable
Original Anchor programs — index token, staking with DAO governance — plus a monorepo of keeper and indexer services.
Rust/Anchor · Raydium SDK · NestJS
A non-custodial multi-chain wallet: one seed across EVM, Solana, and Bitcoin, with keys that never leave the background worker.
TypeScript · viem · @solana/web3.js
Perps on Arbitrum with the production system around them: liquidators, keepers, subgraphs, and an end-to-end suite.
Solidity · The Graph · NestJS
Staff augmentation optimizes for billable seats; ownership optimizes for a system that survives an audit and a mainnet launch. When you hire through this page, RedDuck owns architecture decisions and their consequences: the team says no to designs that should not ship, writes code to a 100% branch-coverage baseline, prepares it for external audit, and hands over repositories, keys, and infrastructure at the end. If what you actually want is résumés to interview and seats to manage, a marketplace will serve you better — and we would rather tell you that on the first call.
You talk to engineers, not sales. We map what needs to be built, challenge the parts that should not be, and agree on what success looks like.
A named team matched to the scope and the stack — with an architecture take attached, so you approve a plan, not a headcount.
Short iterations against a visible backlog, with testing and audit preparation running as part of development rather than after it.
External audit coordinated on our side, findings closed, then deployment with full authority handover and a warranty window.

What da quack?
Tell us what you're building. We'll come back with a team composition and an architecture take — not a rate card.

Mark VirchenkoChief Executive OfficerLinkedIn